Starter for gas-engines.



W. KELLY. STARTER FOR GAS ENGINES. APPLIOAIION TILED SEPT. 0, 101

1 1 20,205. Patented Dec. 8, 1914.

4 SHEETS-811E121 l.

W/ T/VESSES: l/V VE/V 70R Ma (VJ MM. F '2 a By W. KELLY. STARTER FOR GAS ENGINES. APPLICATION FILED $21 10, 1911.

1 1 20,205. Patented Dec. 8, 1914.

1 SHEETS "SHEET 2.

WITNESSES: l/Vl/E/WUI? W. KELLY.

STARTER FOR GAS ENGINES. APPLICATION FILED SEPT.9,1911.

1,120,205. Patented Dec. 8, 1914.

4 SHEETS-SHEET 3.

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Q q I o-Q 6 I] Q x (Q) 24 'M I s| H M G3 N WITNESS s.- I I I INVENTOR III W. KELLY.

STARTER FOR GAS ENGINES.

APPLICATION FILED SEPT. 9, 1911.

Patented Dec. 8, 1914.

4 SHEETS-SHEET 4.

WITNESS 8:. 1 15 sectional detail view oi the WILLIAM KELLY, DIE

DETROIT, IVIICHIGAN, ASSIGNOR-TO MAXW'ELL MOTOR COMPANY,

INCOEPGRATED, OF DETROIT, MICHIGAN.

srren'rnn 7 non GAS-ENGINES.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application filed September 9, 1911. Serial No. 648,466.

To all whom 1' i may concern Be it known that I, VVILLIAM KELLY, citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain-new and useful Improvement in Starters for Gas-Engines, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertainsto make and use the same, reference being bad to the accompanyin; drawings, which form a part of this specif lcation.

y invention relates to starters for gas engines and an object of my improvements is to provide an improved apparatus by which a supply of compressed air may be controlled nd governed to start a gas engine.

I have shown the apparatus embodying my improvements in the accompanying drawings in connection with a founoylinder automobile engine.

lln the drawings :-Figure 1, is a plan view of the apparatus embodying my invention, and so much of an automobile as is convenient to illustrate the connection of said apparatus therewith. Fi 2, is an enlarged portion of the apparatus attached to the dash-board of the vehicle' Fig. 3, is a perspective view of the distributing disk. Fig. l, is a plan view of the casting and attached parts in which the distributing and governing apparatus is chiefly contained. Fig. 5, is an elevation of the apparatus shown in Fig. l, looking toward the side that is toward the bottom of the sheet in Fig. el. Fig. 6, is a view partly in section on the line 6-6 Figs. l and 7, the

upper part of the casing being shown in section and the'lower in elevation with the distributing disk and its casin removed. Fig.

7, is a section on the line 7- Fig. 5. Fig. 8, is a view similar to Fig. 6 except that the distributing disk is shown in position. Fig. 9, is a perspective View of a multiple piston valve.

A isa reservoir containing compressed air and B is a pipe leading therefrom to valves upon the dash-board A "The construction of the valves on the dash-board is illustrated in detail in Fig. 2. G is a'needle valve by whi ch the passage B maybepermanently closed to prevent leakage. D is a passage communicating with the passage B'when the needle valve C is open and at the other end communicating with a chamber d. b is a pipe leading from the chamber d to a convenient point where it will be provided with a stop cock of any ordinary construction, not shown, by which the air may be drawn from the reservoir A. At an end of the chamber (Z is a valve 11 upon the inner end of a spindle f. The outer end of the spindle f is providedwith a pedal F. e is a spring adapted to normally hold the valve E closed. G is a pipe communicating with the chamber (Z When the valve E is open and leading to the casting a a in which the main distributing apparatus is located.

The casting a a constitutes the casing of the apparatus constituting the distributor. J, J, J J are the cylinders of a gas engine. 9' j j are passages in the casting a a communicating respectively with the cylinders J J J J, as shown in Fig. 1. In the upper part of the casting a a is formed a horizontal cylindrical chamber L L and with this chamber the passages j y" 9' y' communicate at intervals as shown in Figs. (3 and 8. E indicates an exhaust passage formed in the casting a a. This is shown as extending laterally for convenience. In the cylindrical chamber L L there is located a piston valve N having an enlarged piston-like head M. m is a spring acting on the head M of the piston valve N N to move it to the left hand end of its travel, as shown in Figs. 6 and 8. n n indicate grooves in the piston valve N N. When the piston valve N N is at its extreme left position it closes all of the passages j y" j j and E". \Vhen said valve is moved toward the right as shown in said figures the grooves a register with said passages and put them respectively into connection with the apertures j 9' j 7' and E, in a circular faced-off surface P. There is a concentric opening 11) in the faced-off surface P. Now referring more particularly to Fig. 3 but also to Figs. 7 and 8: Q, is a circular disk hollowed out to form a circular cavity Q concentric with the said disk leaving a smooth face between the cavity Q? and the periphery of the disk. Q is trunnion extending from the bottom of the cavity Q of the disk Q concentric therewith formed to engage as a part of an (lldham coupling. The casting a a is secured to the engine so that the cam shaft K (Fig. l) with its end suitably formed shall engage the trunnion Q} so as to rotate the disk Q. Q, is a cavity extending toward the periphery of the disk (Ell Q from the cavity 122, The dish: is cut away (Q5 part way iii'toward the cavity Q3. is a cover, or casing, closing tight over the dislt 2 which is placed with its trunnion Q in the hole p, and bearing surface between. its periphery and the opeiiiiog closely upon the faced-old poo tioii P the castil w a o.

he arrangement of the apertures j j 9' 9' is such that a s all he covered by the bearing surface 0' the disk except when the cut away portion registers with one o said apertures or the cavity Q registers one, of said apertures, The exhaust aperture l'l -f opeus through faced su ace such point that is in com" auoicatiota a 'th cavity Q l i i o 7) is a 1 adapted "to reciprocate iii a cav. cover of c i l and bear against the center or disl: 1

age t i. is a pipe or passage co cted with pipe G and also opening late 03. outside of the di, as iodi Fig. 7,

air passing the champ 3 end l of the piston i to the same to ich shall open the j n respective apes tures 5 i l exhaust pas with its aperture The operation oi the aloe-ye described device is as follows :-l/Vishio to the eii glue the needle valve C he opeiithe operator presses upon the We F with his foot opening the valve Fal and permitting the compressed air re. the roses voi'r-A to pass through from the pipe the passage 1D and chamber o? to the tothe H and from there to the easing l outside of the dislt and also through the pipe it to the cylindrical chamber L1 L1, its pressure actuating the piston valve N N to positioato open all of the passages j i j j At this time the cut away portion of dish Q, willhe registering with one or the other of said apertures, as for instance j? (Fig. 8) hollowed out portion or cavity of said dish would be registering with the next one of? said apertures as for instance j In this case the compressed air from the reservoir will pass through the aperture j and through 5} to the cylinder J shove the piston therein while the upper end of the piston in the cylinder 8 which will he then compressing, will he opera through the passage jh aud aperture 9 to the hollows or cavities Q? U lag loolts engaging in the slots 0 o casting is its desired pOSitlQE-u proper relative positions of the l d the aperture in the laced-oil sue "ii reou the f a o be turned nor as indicated by dotted litres d fixed in their required ost is: an apparatus of liiod described, hinatioii of a source of co 3 a multiple cylinder eagles;

J leading from each n 'ziders of said engine to said dist a, a valve adapted era 1. q a yalvea L ttor hetweeia said source oomsaid di ributor aiad means pressure oi the compressed air s the first valve to open all of between said distribut and the c; oi the er a when a I hjetweeo; the reservoir distributor combination of source of compresse air a multiple cylinder-teas eagles a dist uter located oi cord Nd and said eagiae a pipe leadio source of compressed aii to said dis" uter and passage-leading from said dis ri outer to each of the cylinders of said. engine, means in said distributor for coon" F each oi said passages leading to t e was ofthe engine successively to e leading to source of compressed air t id means in said distributor for plac leading; from said distributer to the cylinders cl said engine successively into communication with the atmos .phere arranged so that the cylinder which is on its compression strolrc shall he placed in coomauiiicatioo with the atmosphere 3. The combination of a source oil com pressed air a multiple cylinder was engine, a distrilouter located hetwecii said source of compressed air and said engine provided an exhaust passage, a pipe leading from said source of compressed air tosaid distributor and a passage leading from said distributor to each of the c liuders of said engine, means is said distributor for conmeeting each of said passages leading to the cylinders oi? the engine, successively to the pipe leading to the source oi compressed air and means in said distributor for placing the leading from said distrihuter to u A ll llii ll ll till the cylinders of said engine successively into communication with the said exhaust pas sage arranged so that the cylmder which is on its compression stroke shall be placed in communication with said exhaust passage, a valve adapted to be actuated by the operator located between said source of compressed air and said distributor, a second valve normally acting to close the exhaust passage lrom said distributer, and means whereby the last named valve is opened when the valve between the source of compressed air and the distributor is actuated to permit compressed air to tlow to said distributor.

lL'lhe combination ot a source of compressed air, a multiple cylinder gas engine, a distributor for the compressed air, located between said source off compressed air and said gas engine, a passage leading from said source of compressed air to said distributor, a passage leading from each oft the cylinders out said engine to said distributor, said dis-- tribute! being provided with a iaced oft' surface having apertures therein connecting with each of the passages to the cylinders, said distributer having an exhaust passage, a rotary disk upon said facedoft surface adapted to cover the apertures therein, said disk being provided with a peripheral aperture adapted to register successively with the apertures in said faced-oil surface, to uncover the same, said disk being provided with a central cavity, the said exhaust passage communicating with said cavity, said disk being also provided with a cavity eittendin outward from the first named cavity and ada ted to register successively with each of sad apertures, and a casing inclosing said disk, the passage from said source of compressed air communicating with said casin 5. line combination of a source oi? compressed air, a multiple cylinder gas engine, a distributer tor the compressed air located between said source of compressed air and said gas engine, a passage leading from said source of compressed air to said distributer, a passage leading from each of the cylinders of said engine to said distributor, said distributor being provided with a faced-oil surface having apertures therein connecting with each of the passages to the cylinclers, said distributer having an exhaust passage, a rotary disk upon said faced-off surface adapted to cover the a ertures therein, said disk being provided with a peripheral aperture adapted to register successively with the apertures in said l'aced-oil' surface to uncover the same, said disk being pro vided with a central cavity, the said exhaust passage communicating with said cavity, said disk being also provided with a cavity extending outward from the first named cavity, and adapted to register successively with each of said apertures, casing in closing said disk, the passage from said source of compressed air communicating with said casing, a piston valve adapted to normally close the passages from said dis tributcr to the cylinders of the engine, means for actuating said piston by compressed air to open the same having its sup ply passage communicating with the passage conveying compressed air to said distributer.

6. The combination of a source of compressed air, a multiple cylinder gas engine, a distributer for the compressed air located between said source of compressed air and said gas engine, a passage lgading from said source of compressed air to said distributor, a passage leading from each oi. the cylinders of said engine to said distributor, said distributer being provided with a faced-off surface having apertures therein. connecting with each of the passages to the cylinders, said distributor having an exhaust passage, a rotary disk upon said faced-oii' surface adapted to cover the apertures therein, said disk being provided with a peripheral aperture adapted to register successively with the apertures in said faced-oil surface, to uncover the same, said disk being provided with a central cavity, the said exhaust passage communicating with said cavity, said disk being also provided with a cavity extending outward from the first named cavity and adapted to register successively with each oi said apertures, a casing inclosing said disk, the passage from said source of compressed air communicating with said. casing, said disk being adapted to be connected with the cam shaft of the engine.

7. The combination. of a source of compressed air, a multiple cylinder gas engine, a distributor for the compressed air located between said source oi? compressed air and said gas engine, a passage leading from said source of compressed air, to said distributer,

a passage leading from each of the cylinders 1 0t said engine to said distributer, said dis tributer being provided with a facedoif surface having apertures therein connecting with each of the passages to the cylinders, said distributor having an exhaust passage, a rotary disk upon said faced oflf surface adapted to cover the apertures therein, said disk being provided with a peripheral aperture adapted to register successively with the apertures in said faced-off surface, to uncover the same, said disk being provided with a central cavity, the said exhaust passage communicating with said cavity, said disk being also provided with a cavity extending outward from the first named cavity and adapted to register successively with each of said apertures, a casing inclosing said disk, the passage from said source of compressed air communicating with said casing, said distributer being pro vided with a casing means For ing said casing to ditierent angular positions about the axis of: said disk.

8. in an apparatus of the kind described, the combination of a casing, a multiplecylinder gas engine, a passage leading from said casing to each of the cylinders of said engine, a source of compressed air a passage leading from said source to said casing, a valve in said casing means for operating said valve from said engine, said valve being adapted to put a cylinder having its piston on the Working stroke into communi cation with the source of compressed and a cylinder on compression stroke into communication With atmosphere.

9. The combination with a niulti-cylinder explosive engine, of a source oi compressed finial, a valve member communicating with said iiuid source, communication between the fluid source and the respective cylinders means tor moving valve to successively hiring the cylinders communication With the source compressed fluid, and

for successively venting; the cylinder on their compression stroke and simultaneously With the admission. of the com pressed tluid to the companion cylinder.

In), in a starting device for explosive engines, the combination With a multiple cylinder engine and a tank containing com.- pressed fluid, of a passage between the cylinders and the tank a valve for ontrolling said passage, venting passages hetvveen the cylinders and the said valve said valve hav ing ports for venting certain cylinders While companion cylinder losing supplied With compressed fluid means for venting communication the i and the cylinders during he normal opera tion of he machine.

testimony whereoig l this speci iication in the presence of WE'iLElQSSGSU WlLLL il /l KELLY Nitin-asses V. iia (l Senora m Strooeaneq While 

